Implemented login functionality at the school's request

2019-09-20 15:49:09 +02:00
parent 8aec4ec4cd
commit 8684e763b1
21 changed files with 580 additions and 65 deletions
@@ -0,0 +1,46 @@
+package com.denizd.substitutionplan.data
+
+import android.webkit.CookieManager
+import android.webkit.WebView
+import android.webkit.WebViewClient
+
+/**
+ * class that extends WebViewClient to provide a function that checks the webpage's cookies to
+ * verify a login
+ *
+ * @param successListener   a reference to the OnLoginSuccessListener implemented in an activity
+ */
+internal class LoginWebViewClient(successListener: OnLoginSuccessListener) : WebViewClient() {
+
+    private val mSuccessListener = successListener
+
+    /**
+     * onPageFinished has been overridden to check if the cookie "joomla_user_state=logged_in"
+     * exists, and returns true to the OnLoginSuccessListener
+     *
+     * @param view  a reference to the WebView
+     * @param url   a reference to the url of the WebView
+     */
+    override fun onPageFinished(view: WebView?, url: String?) {
+        super.onPageFinished(view, url)
+        val cookies = CookieManager.getInstance().getCookie(url)
+
+        if (cookies.contains("joomla_user_state=logged_in")) {
+            mSuccessListener.onLoginSucceeded(true)
+        }
+    }
+
+    /**
+     * the interface that provides onLoginSucceeded to the activity or fragment that implements it
+     */
+    internal interface OnLoginSuccessListener {
+
+        /**
+         * the function that can be overridden to check whether a successful login has occurred
+         *
+         * @param success   boolean value that returns true if the cookie could be found,
+         *                  false otherwise
+         */
+        fun onLoginSucceeded(success: Boolean)
+    }
+}